FRAME FEATURES: OX8191 Enigma Mass feature a square, satin black frame with Unobtainium nosepads and earsocks. PRESCRIPTION READY EYEGLASS FRAMES: Oakley eyeglass frames feature lenses that need to be replaced with prescription lenses so you can enjoy clear vision. VISIT THE OAKLEY BRAND SHOP: Click on the Oakley link above the product title to shop the entire Oakley sunglass and eyeglass assortment. VISIT THE OAKLEY BRAND SHOP: Click on the Oakley link above the product title to shop the entire Oakley sunglass and eyeglass assortment. UNOBTANIUM EARSOCKS & NOSE PADS: Unobtanium earsocks and nose pads for increased comfort and performance.